Keyphrases
- noise variance
- denoising
- noisy images
- wiener filter
- denoising algorithm
- gaussian noise
- image denoising
- image processing
- additive noise
- noise level
- wavelet domain
- denoising methods
- natural images
- frequency domain
- noise removal
- noise model
- regularization parameter
- noise free
- wavelet coefficients
- correlation coefficient
- image restoration
- cross validation
- noise reduction
- impulse noise
- signal to noise ratio
- wavelet transform
- error rate
- color images
- computer vision